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Note 3 - Segment Reporting Information - Summarized Financial Information by Reportable Business Segments (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2017 | Dec. 31, 2016
Net Sales: |  |  |  |
Net sales | $ 92,305 | $ 85,658 | $ 179,771 | $ 169,817
Operating Income (Loss): |  |  |  |
Operating income (loss) | 4,547 | 2,818 | (20,267) | 3,884
Capital Expenditures: |  |  |  |
Capital expenditures | 692 | 784 | 1,190 | 2,744
Depreciation and Amortization: |  |  |  |
Depreciation and amortization | 2,552 | 1,770 | 5,124 | 3,605
Corporate and Eliminations [Member] |  |  |  |
Operating Income (Loss): |  |  |  |
Operating income (loss) | (2,983) | (2,117) | (6,343) | (5,159)
Capital Expenditures: |  |  |  |
Capital expenditures | 36 | 120 | 91 | 618
Depreciation and Amortization: |  |  |  |
Depreciation and amortization | 283 | 279 | 575 | 562
Lighting Segment [Member] |  |  |  |
Net Sales: |  |  |  |
Net sales | 69,174 | 65,076 | 137,602 | 130,341
Lighting Segment [Member] | Operating Segments [Member] |  |  |  |
Operating Income (Loss): |  |  |  |
Operating income (loss) | 5,275 | 3,761 | (17,655) | 6,852
Capital Expenditures: |  |  |  |
Capital expenditures | 499 | 205 | 760 | 1,301
Depreciation and Amortization: |  |  |  |
Depreciation and amortization | 1,885 | 1,115 | 3,786 | 2,307
Graphics Segment [Member] |  |  |  |
Net Sales: |  |  |  |
Net sales | 23,131 | 20,582 | 42,169 | 39,476
Graphics Segment [Member] | Operating Segments [Member] |  |  |  |
Operating Income (Loss): |  |  |  |
Operating income (loss) | 2,255 | 1,174 | 3,731 | 2,191
Capital Expenditures: |  |  |  |
Capital expenditures | 157 | 459 | 339 | 825
Depreciation and Amortization: |  |  |  |
Depreciation and amortization | $ 384 | $ 376 | $ 763 | $ 736

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